Observations on superfluid meniscus in rotating 3He- B

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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4

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Physical Review Letters, Volume 74, issue 14, pp. 2744-2747

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The parabolic superfluid meniscus has been seen for states in which only (1) the normal or (2) the superfluid component of 3He- B rotates. A reduced, temperature-dependent meniscus (1) was formed at small speeds Ω0.21 rad /s. A deeper-than-expected meniscus (2) was observed after a rapid halt of the cryostat, when the normal fluid stops during a short relaxation time, followed by slow decay of the superfluid circulation. The depth of the meniscus (2) was explained by a reactive radial force between the rotating superfluid and the stationary normal liquid.

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Alles, H, Ruutu, J P, Babkin, A V, Hakonen, P J, Lounasmaa, O V & Sonin, E B 1995, 'Observations on superfluid meniscus in rotating 3He- B', Physical Review Letters, vol. 74, no. 14, pp. 2744-2747. https://doi.org/10.1103/PhysRevLett.74.2744